US20180229938A1 - Snap-in dual-pronged retaining device for a conveyor component - Google Patents
Snap-in dual-pronged retaining device for a conveyor component Download PDFInfo
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- US20180229938A1 US20180229938A1 US15/892,823 US201815892823A US2018229938A1 US 20180229938 A1 US20180229938 A1 US 20180229938A1 US 201815892823 A US201815892823 A US 201815892823A US 2018229938 A1 US2018229938 A1 US 2018229938A1
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- United States
- Prior art keywords
- retaining device
- base
- prong
- module
- side edge
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/30—Details; Auxiliary devices
- B65G17/38—Chains or like traction elements; Connections between traction elements and load-carriers
- B65G17/42—Attaching load carriers to traction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/06—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms
- B65G17/08—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms the surface being formed by the traction element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/24—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising a series of rollers which are moved, e.g. over a supporting surface, by the traction element to effect conveyance of loads or load-carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/30—Details; Auxiliary devices
- B65G17/32—Individual load-carriers
- B65G17/34—Individual load-carriers having flat surfaces, e.g. platforms, grids, forks
- B65G17/345—Individual load-carriers having flat surfaces, e.g. platforms, grids, forks the surfaces being equipped with a conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/30—Details; Auxiliary devices
- B65G17/38—Chains or like traction elements; Connections between traction elements and load-carriers
- B65G17/40—Chains acting as load-carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
- B65G2207/30—Modular constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2812/00—Indexing codes relating to the kind or type of conveyors
- B65G2812/02—Belt or chain conveyors
- B65G2812/02267—Conveyors having endless traction elements
- B65G2812/02277—Common features for chain conveyors
- B65G2812/02326—Chains, cables or the like
- B65G2812/02376—Chains, cables or the like characterised by the configuration
- B65G2812/02396—Links and their attaching means
Definitions
- the invention relates generally to power-driven conveyors and more particularly to a retention device for retaining conveyor components together.
- Modular plastic conveyor belts are widely used in various industries to convey products.
- Modular plastic conveyor belts are constructed of a series of rows of side-by-side belt modules. Hinge eyes along opposite ends of each row interleave with hinge eyes of consecutive rows. A hinge rod inserted in the interleaved hinge eyes connects the rows together at hinge joints into an endless conveyor belt loop.
- the INTRALOX® Series 7050 Dual-Stacked Transverse Roller belt includes a first set of rollers within the body of a conveyor belt module supporting a second set of smaller-diameter rollers that contact and direct product.
- a snap-in dual-pronged retaining device for a conveyor component includes two parallel prongs extending from an integral base.
- the prongs may form axles for rollers, hinge rods for coupling two conveyor belt modules together, or retaining shafts for retaining a component relative to the conveyor belt.
- An integral fastener secures the snap-in dual-pronged retaining device in place.
- a retaining device for a conveyor component comprises a substantially planar base, a first prong extending from the base along a first axis, and a second prong extending from the base along a second axis parallel to the first axis.
- a conveyor belt module comprises a body extending longitudinally from a first end to a second end, laterally from a first side edge to a second side edge and in thickness from a top surface to a bottom surface, a pair of rollers coupled to the body using a retaining device having two prongs extending from an integral base, each prong extending through a roller and a lock for securing the retaining device relative to the body.
- a conveyor belt comprises a first module, a second module, a third module and a two-pronged retaining device for coupling the first module, second module and third module together.
- the first module comprises a body extending longitudinally from a first end to a second end, laterally from a first side edge to a second side edge and in thickness from a top surface to a bottom surface, a plurality of first hinge elements spaced across the first end and a plurality of second hinge elements spaced across the second end.
- the second module comprises a body extending longitudinally from a first end to a second end, laterally from a first side edge to a second side edge and in thickness from a top surface to a bottom surface, a plurality of third hinge elements spaced across the first end and aligned with the first hinge elements to form a first hinge passageway and a plurality of fourth hinge elements spaced across the second end.
- the third module comprises a body extending longitudinally from a first end to a second end, laterally from a first side edge to a second side edge and in thickness from a top surface to a bottom surface, a plurality of fifth hinge elements spaced across the first end and aligned with the fourth hinge elements to form a second hinge passageway and a plurality of sixth hinge elements spaced across the second end.
- the two-pronged retaining device comprises a base seated adjacent the first side edge of the second module, a first prong integrally formed with the base and extending through the first hinge passageway and a second prong integrally formed with the base and extending through the second hinge passageway.
- FIG. 1 is an isometric view of a portion of a conveyor belt module employing two-pronged retention device of an embodiment of the invention
- FIG. 2 is an isometric view of the two-pronged retention device of FIG. 1 ;
- FIG. 3 is a top view of the two-pronged retention device of FIG. 2 ;
- FIG. 4 is an isometric view of a conveyor belt module suitable for receiving a two-pronged retention device
- FIG. 5 shows the conveyor belt module of FIG. 4 with the two-pronged retention device of FIG. 2 inserted therein to retain a roller;
- FIG. 6 is a side view of the module of FIG. 5 ;
- FIG. 7 is an isometric view of a portion of a conveyor belt employing a two-pronged retention device according to another embodiment of the invention.
- FIG. 8 is an isometric view of the two-pronged retention device of FIG. 7 ;
- FIG. 9 is a side view of the two-pronged retention device of FIG. 8 ;
- FIG. 10 shows a portion of a conveyor belt employing a two-pronged retention device according to another embodiment of the invention.
- FIG. 11 is a cross-sectional view of a multi-directional roller assembly that employs a two-pronged retention device according to another embodiment of the invention.
- FIG. 12 is a close-up view of the base portion of the two-pronged retention device of FIG. 11 when latched onto the multi-directional roller assembly;
- FIG. 13 is a cross-sectional view of a multi-directional roller assembly that employs a two-pronged retention device according to another embodiment of the invention.
- FIG. 14 is a detailed view of the tip of an axle of the two-pronged retention device of FIG. 13 ;
- FIG. 15 is a cross-sectional view of a multi-directional roller assembly that employs a two-pronged retention device according to another embodiment of the invention.
- FIG. 16 is a detailed view of a retention feature in the multi-directional roller assembly of FIG. 15 ;
- FIG. 17 is an isometric view of a multi-directional roller assembly employing two-pronged retention devices according to another embodiment of the invention.
- FIG. 18 is an isometric view of a two-pronged retention device of FIG. 17 ;
- FIG. 19 is an isometric view of another two-pronged retention device of FIG. 17 .
- a snap-in dual-pronged retaining device for a portion of a conveyor includes two parallel prongs extending from an integral base member.
- the prongs may be roller axles, hinge rods or any type of axles, shaft, rod, bar or the like used to retain one or more components, such as rollers, in a conveyor.
- the invention will be described relative to certain illustrative embodiments, though one skilled in the art will recognize that the invention is not limited to these illustrative embodiments.
- FIG. 1 A portion of one row of a modular conveyor belt employing a snap-in dual-pronged retaining device having features of the invention is shown in FIG. 1 .
- the illustrative belt row 10 comprises one or more belt modules 12 arranged side by side. Each module extends from a first end 14 to an opposite second end 15 in a direction of belt travel 16 and includes a plurality of hinge elements 72 extending from the first and second ends.
- Belt rollers 18 reside in cavities 20 formed in the belt module between the first and second ends.
- An axle 22 extending through a bore 24 in each belt roller defines an axis of rotation 26 for the belt roller.
- the axis of rotation 26 is parallel to the direction of belt travel 16 .
- the axles of all the belt rollers 18 in the belt row 10 lie in a common plane.
- each belt roller 18 Mounted atop each belt roller 18 is a pair 28 of article-supporting rollers 30 .
- the illustrative article-supporting rollers are longer than the belt rollers 18 to provide more contact with a conveyed product, but the invention is not so limited, and the article-supporting rollers and belt rollers can have any suitable size and length. Because there are more article-supporting rollers 30 than belt rollers 18 , the article-supporting rollers provide more contact area for conveyed articles than would the belt rollers 18 in a belt without the pairs of article-supporting rollers 30 .
- the peripheries of the rollers contacting each other may be made of high-friction materials for good engagement.
- the article-supporting rollers alternatively can be made of materials producing a low-friction or durable periphery.
- Each pair 28 of article-supporting rollers 30 is supported by a snap-in dual-pronged retaining device 40 , an embodiment of which is shown in FIGS. 2 and 3 .
- Each snap-in dual-pronged retaining device 40 includes a substantially planar base 41 from which extend two parallel prongs forming axles 43 , 44 .
- the axles 43 , 44 extend through bores 32 in the article-supporting rollers 30 and define the axes of rotation of the article-supporting rollers 30 .
- the axes of rotation of the article supporting rollers are parallel to the axes 26 of the belt rollers 18 .
- the illustrative axles 43 , 44 have tapered tips, though the invention is not so limited.
- the axles have circular cross-sections, though the invention is not so limited.
- the base 41 has an obround shape (shaped like a racetrack), with the curved side edges 411 , 412 , forming semicircles extending tangent to and connecting a top edge 416 to a bottom edge 417 .
- the curved side edges 411 , 412 coincide with and share the same curve as the outer side surfaces of the axles 43 , 44 , so that the axles extend to and intersect the side surfaces 411 , 412 .
- the diameter of each axle 43 , 44 is equal to the height H of the base 41 and the outermost sides of the axles 43 , 44 are separated by a distance equal to the width W of the base 41 .
- the top and bottom edges 416 , 417 are straight.
- the module 12 includes a seat 51 for receiving the snap-in dual-pronged retaining device 40 .
- the seat 51 is formed in a stanchion 50 extending up from the body of the conveyor belt module.
- the illustrative module includes two stanchions 50 , 60 on each end of each cavity 20 .
- a first stanchion 50 which seats the base 41 includes a recess 51 in an outer surface sized and configured to receive the base.
- the stanchion 50 also includes two openings 53 , 54 for receiving each axle 43 , 44 .
- the stanchion 50 may be integral with the module body, as shown in FIGS. 4, 5 and 6 , or comprise a separate insert, as shown in FIG. 1 .
- the insert stanchion in FIG. 1 further includes an opening 57 for receiving the axle 22 of a lower roller 18 .
- the module 12 further includes a fastener for securing the dual-pronged retaining device 40 .
- the fastener may be integral with the dual-pronged retaining device 40 or partially on either component.
- the fastener comprises a protrusion 70 extending up from a hinge element 72 below the stanchion.
- the protrusion 70 serves to lock the base 41 of the retainer 40 in the recess 51 .
- the illustrative protrusion 70 has a slanted front surface 71 though the invention is not so limited.
- a ramp 73 at the top of the slanted front face facilitates insertion of the base 41 in the recess 51 .
- the illustrative ramp 73 extends at about 20° relative to the horizontal. When locked in the recess 51 , the protrusion 70 overlaps the base of the retaining device 40 .
- the invention is not limited to the illustrative fastener, and any suitable means for securing the retaining device in place may be used.
- the fastener may comprise a hook, protrusion, recess, opening, barb, groove, or other suitable device on the module, retaining device and-or the component to be retained, such as a roller.
- axles 43 , 44 extend into openings 62 , 64 formed in the second stanchion 60 on the opposite end of the module.
- the axle ends may be press-fit into the openings 62 , 64 , but the invention is not so limited.
- the axles 43 , 44 can be acetal, corrosion-resistant, plain, or hardened steel, for example, or any suitable material or combination of materials.
- the dual-pronged retention device 40 is injection molded plastic.
- the dual-pronged retaining device 40 can be rotated 90° and used to retain rollers or other components that are stacked vertically.
- a dual-pronged retention device 40 can be used for other applications not limited to the embodiment shown in FIGS. 1-6 .
- dual-pronged retention devices 140 may be used as hinge pins, linking modules 112 , 114 , 116 , 118 , 120 , 122 together in a conveyor belt 110 .
- a central dual-pronged retaining device 140 c may link modules 114 and 116 together using a first axle 143 and modules 116 , 118 together using a second axle 144 .
- Each dual-pronged retention device 140 comprises a base 141 from which extend two parallel axles 143 , 144 forming hinge rods.
- the hinge rods 143 , 144 are inserted through aligned hinge openings of adjacent modules to link the modules together, with the base 141 sitting flush against a first side of the linked modules, spanning an entire module length.
- the axles 143 , 144 may each include a retention barb 146 , 147 or other feature for fastening the retention device relative to the modules.
- the retention barbs 146 , 147 hook onto an edge of the module to lock the retaining device in place, though other suitable locking mechanisms may be used.
- dual-pronged retention devices 240 with parallel prongs 243 , 244 extending from an integral base may be used to retain staggered rollers 260 in a conveyor belt 280 .
- a dual-pronged retention device 340 may be used in a multi-directional roller assembly 300 , such as the multi-directional roller assembly described in U.S. Pat. No. 8,979,879, issued Mar. 15, 2015, the contents of which are herein incorporated by reference.
- the dual-pronged retention device 340 can form axles for mounting the mutually-actuating rollers 302 , 304 in the assembly 300 and maintaining the positions of the rollers relative to each other and relative to the frame 310 of the assembly.
- the dual-pronged retention device 340 comprises a base 340 from which axles 343 , 344 extend.
- the axles 343 , 344 may be parallel to each other.
- the base 341 is seated in a seat in the frame 310 .
- a fastener shown as a latch 348 , extends from a central portion of the base 341 for securing the device 340 to the frame 310 .
- the latch 348 includes a flexible barb 349 that engages an edge in the frame to secure the device in place.
- a dual-pronged retention device 440 for a multi-directional roller assembly 400 includes a base 441 seated in a seat and axles 443 , 444 extending from the base for mounting rollers 402 , 404 .
- the tips 445 , 446 of the axles 443 , 444 are split to form flexible, compressible legs.
- the tips 445 , 446 compress to pass through a retaining opening 411 in the frame 410 , then pop open to retain the dual-pronged retention device 440 in place, as shown in FIG. 14 .
- a dual-pronged retention device 540 for a multi-directional roller assembly 500 includes a base 541 seated in a seat in a frame 510 of the multi-directional roller assembly and axles 543 , 544 extending from the base 541 for mounting rollers 502 , 504 .
- a protrusion 511 in the frame 510 can engage the base to lock the retention device in place.
- FIG. 17 shows another embodiment of a multi-directional roller assembly 600 including self-retaining dual-pronged retention devices holding pairs of mutually-actuating rollers 602 relative to a frame 610 .
- a first retention device 640 shown in FIG. 18 , comprises a base 641 from which parallel axles 643 , 644 extend.
- One or more flexible retention barbs or tabs 646 extend from the base 641 .
- the frame 610 of the multi-directional roller assembly 600 includes a feature in the frame 610 for engaging the flexible retention tab 646 to hold the retention device 640 in place.
- a dual-pronged retention device 640 ′ may include an opening 670 in the base 641 ′.
- the invention is not limited to a retention device with two prongs, and the device may alternatively include three or more prongs extending from an integral base to secure components of a conveyor.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Rollers For Roller Conveyors For Transfer (AREA)
- Belt Conveyors (AREA)
- Structure Of Belt Conveyors (AREA)
Abstract
Description
- The present application claims priority to U.S. Provisional Patent Application No. 62/458,130, filed Feb. 13, 2017, and entitled, “Snap-In Dual-Pronged Retaining Device for a Conveyor Component”, the contents of which are herein incorporated by reference.
- The invention relates generally to power-driven conveyors and more particularly to a retention device for retaining conveyor components together.
- Modular plastic conveyor belts are widely used in various industries to convey products. Modular plastic conveyor belts are constructed of a series of rows of side-by-side belt modules. Hinge eyes along opposite ends of each row interleave with hinge eyes of consecutive rows. A hinge rod inserted in the interleaved hinge eyes connects the rows together at hinge joints into an endless conveyor belt loop.
- In addition, some conveyor belts integrate rollers or other auxiliary components using rods. For example, the INTRALOX® Series 7050 Dual-Stacked Transverse Roller belt includes a first set of rollers within the body of a conveyor belt module supporting a second set of smaller-diameter rollers that contact and direct product.
- A snap-in dual-pronged retaining device for a conveyor component includes two parallel prongs extending from an integral base. The prongs may form axles for rollers, hinge rods for coupling two conveyor belt modules together, or retaining shafts for retaining a component relative to the conveyor belt. An integral fastener secures the snap-in dual-pronged retaining device in place.
- According to one aspect, a retaining device for a conveyor component comprises a substantially planar base, a first prong extending from the base along a first axis, and a second prong extending from the base along a second axis parallel to the first axis.
- According to another aspect, a conveyor belt module comprises a body extending longitudinally from a first end to a second end, laterally from a first side edge to a second side edge and in thickness from a top surface to a bottom surface, a pair of rollers coupled to the body using a retaining device having two prongs extending from an integral base, each prong extending through a roller and a lock for securing the retaining device relative to the body.
- According to another aspect, a conveyor belt comprises a first module, a second module, a third module and a two-pronged retaining device for coupling the first module, second module and third module together. The first module comprises a body extending longitudinally from a first end to a second end, laterally from a first side edge to a second side edge and in thickness from a top surface to a bottom surface, a plurality of first hinge elements spaced across the first end and a plurality of second hinge elements spaced across the second end. The second module comprises a body extending longitudinally from a first end to a second end, laterally from a first side edge to a second side edge and in thickness from a top surface to a bottom surface, a plurality of third hinge elements spaced across the first end and aligned with the first hinge elements to form a first hinge passageway and a plurality of fourth hinge elements spaced across the second end. The third module comprises a body extending longitudinally from a first end to a second end, laterally from a first side edge to a second side edge and in thickness from a top surface to a bottom surface, a plurality of fifth hinge elements spaced across the first end and aligned with the fourth hinge elements to form a second hinge passageway and a plurality of sixth hinge elements spaced across the second end. The two-pronged retaining device comprises a base seated adjacent the first side edge of the second module, a first prong integrally formed with the base and extending through the first hinge passageway and a second prong integrally formed with the base and extending through the second hinge passageway.
- These aspects and features of the invention, as well as its advantages, are described in more detail in the following description, appended claims, and accompanying drawings, in which:
-
FIG. 1 is an isometric view of a portion of a conveyor belt module employing two-pronged retention device of an embodiment of the invention; -
FIG. 2 is an isometric view of the two-pronged retention device ofFIG. 1 ; -
FIG. 3 is a top view of the two-pronged retention device ofFIG. 2 ; -
FIG. 4 is an isometric view of a conveyor belt module suitable for receiving a two-pronged retention device; -
FIG. 5 shows the conveyor belt module ofFIG. 4 with the two-pronged retention device ofFIG. 2 inserted therein to retain a roller; -
FIG. 6 is a side view of the module ofFIG. 5 ; -
FIG. 7 is an isometric view of a portion of a conveyor belt employing a two-pronged retention device according to another embodiment of the invention; -
FIG. 8 is an isometric view of the two-pronged retention device ofFIG. 7 ; -
FIG. 9 is a side view of the two-pronged retention device ofFIG. 8 ; -
FIG. 10 shows a portion of a conveyor belt employing a two-pronged retention device according to another embodiment of the invention. -
FIG. 11 is a cross-sectional view of a multi-directional roller assembly that employs a two-pronged retention device according to another embodiment of the invention; -
FIG. 12 is a close-up view of the base portion of the two-pronged retention device ofFIG. 11 when latched onto the multi-directional roller assembly; -
FIG. 13 is a cross-sectional view of a multi-directional roller assembly that employs a two-pronged retention device according to another embodiment of the invention; -
FIG. 14 is a detailed view of the tip of an axle of the two-pronged retention device ofFIG. 13 ; -
FIG. 15 is a cross-sectional view of a multi-directional roller assembly that employs a two-pronged retention device according to another embodiment of the invention; -
FIG. 16 is a detailed view of a retention feature in the multi-directional roller assembly ofFIG. 15 ; -
FIG. 17 is an isometric view of a multi-directional roller assembly employing two-pronged retention devices according to another embodiment of the invention; -
FIG. 18 is an isometric view of a two-pronged retention device ofFIG. 17 ; -
FIG. 19 is an isometric view of another two-pronged retention device ofFIG. 17 . - A snap-in dual-pronged retaining device for a portion of a conveyor includes two parallel prongs extending from an integral base member. The prongs may be roller axles, hinge rods or any type of axles, shaft, rod, bar or the like used to retain one or more components, such as rollers, in a conveyor. The invention will be described relative to certain illustrative embodiments, though one skilled in the art will recognize that the invention is not limited to these illustrative embodiments.
- A portion of one row of a modular conveyor belt employing a snap-in dual-pronged retaining device having features of the invention is shown in
FIG. 1 . Theillustrative belt row 10 comprises one ormore belt modules 12 arranged side by side. Each module extends from afirst end 14 to an opposite second end 15 in a direction of belt travel 16 and includes a plurality ofhinge elements 72 extending from the first and second ends.Belt rollers 18 reside in cavities 20 formed in the belt module between the first and second ends. Anaxle 22 extending through a bore 24 in each belt roller defines an axis of rotation 26 for the belt roller. The axis of rotation 26 is parallel to the direction of belt travel 16. The axles of all thebelt rollers 18 in thebelt row 10 lie in a common plane. - Mounted atop each
belt roller 18 is a pair 28 of article-supportingrollers 30. The illustrative article-supporting rollers are longer than thebelt rollers 18 to provide more contact with a conveyed product, but the invention is not so limited, and the article-supporting rollers and belt rollers can have any suitable size and length. Because there are more article-supportingrollers 30 thanbelt rollers 18, the article-supporting rollers provide more contact area for conveyed articles than would thebelt rollers 18 in a belt without the pairs of article-supportingrollers 30. The peripheries of the rollers contacting each other may be made of high-friction materials for good engagement. The article-supporting rollers alternatively can be made of materials producing a low-friction or durable periphery. - Each pair 28 of article-supporting
rollers 30 is supported by a snap-in dual-prongedretaining device 40, an embodiment of which is shown inFIGS. 2 and 3 . Each snap-in dual-prongedretaining device 40 includes a substantiallyplanar base 41 from which extend two parallelprongs forming axles axles bores 32 in the article-supportingrollers 30 and define the axes of rotation of the article-supportingrollers 30. The axes of rotation of the article supporting rollers are parallel to the axes 26 of thebelt rollers 18. Theillustrative axles - The
base 41 has an obround shape (shaped like a racetrack), with thecurved side edges top edge 416 to abottom edge 417. The curved side edges 411, 412 coincide with and share the same curve as the outer side surfaces of theaxles axle base 41 and the outermost sides of theaxles base 41. The top andbottom edges - Referring to
FIGS. 1, 4, 5 and 6 , themodule 12 includes aseat 51 for receiving the snap-in dual-pronged retaining device 40. Theseat 51 is formed in astanchion 50 extending up from the body of the conveyor belt module. The illustrative module includes twostanchions first stanchion 50, which seats thebase 41 includes arecess 51 in an outer surface sized and configured to receive the base. Thestanchion 50 also includes twoopenings 53, 54 for receiving eachaxle stanchion 50 may be integral with the module body, as shown inFIGS. 4, 5 and 6 , or comprise a separate insert, as shown inFIG. 1 . The insert stanchion inFIG. 1 further includes an opening 57 for receiving theaxle 22 of alower roller 18. - The
module 12 further includes a fastener for securing the dual-pronged retaining device 40. Alternatively, the fastener may be integral with the dual-pronged retaining device 40 or partially on either component. In the embodiment ofFIGS. 1-6 , the fastener comprises aprotrusion 70 extending up from ahinge element 72 below the stanchion. Theprotrusion 70 serves to lock thebase 41 of theretainer 40 in therecess 51. Theillustrative protrusion 70 has a slantedfront surface 71 though the invention is not so limited. Aramp 73 at the top of the slanted front face facilitates insertion of the base 41 in therecess 51. Theillustrative ramp 73 extends at about 20° relative to the horizontal. When locked in therecess 51, theprotrusion 70 overlaps the base of the retainingdevice 40. The invention is not limited to the illustrative fastener, and any suitable means for securing the retaining device in place may be used. For example, the fastener may comprise a hook, protrusion, recess, opening, barb, groove, or other suitable device on the module, retaining device and-or the component to be retained, such as a roller. - The ends of the
axles openings second stanchion 60 on the opposite end of the module. The axle ends may be press-fit into theopenings - The
axles pronged retention device 40 is injection molded plastic. - In one embodiment, the dual-
pronged retaining device 40 can be rotated 90° and used to retain rollers or other components that are stacked vertically. - A dual-
pronged retention device 40 can be used for other applications not limited to the embodiment shown inFIGS. 1-6 . - For example, as shown in
FIG. 7-9 , dual-pronged retention devices 140 may be used as hinge pins, linkingmodules conveyor belt 110. For example, a central dual-pronged retaining device 140 c may linkmodules first axle 143 andmodules second axle 144. Each dual-pronged retention device 140 comprises a base 141 from which extend twoparallel axles hinge rods axles retention barb retention barbs - In another embodiment, shown in
FIG. 10 , dual-pronged retention devices 240 withparallel prongs staggered rollers 260 in aconveyor belt 280. - In another application, shown in
FIGS. 11 and 12 , a dual-pronged retention device 340 may be used in amulti-directional roller assembly 300, such as the multi-directional roller assembly described in U.S. Pat. No. 8,979,879, issued Mar. 15, 2015, the contents of which are herein incorporated by reference. The dual-pronged retention device 340 can form axles for mounting the mutually-actuatingrollers assembly 300 and maintaining the positions of the rollers relative to each other and relative to theframe 310 of the assembly. - The dual-
pronged retention device 340 comprises a base 340 from whichaxles axles base 341 is seated in a seat in theframe 310. A fastener, shown as alatch 348, extends from a central portion of thebase 341 for securing thedevice 340 to theframe 310. As shown inFIG. 12 , thelatch 348 includes aflexible barb 349 that engages an edge in the frame to secure the device in place. - In another embodiment, shown in
FIG. 13 , a dual-pronged retention device 440 for amulti-directional roller assembly 400 includes a base 441 seated in a seat andaxles rollers tips axles tips opening 411 in theframe 410, then pop open to retain the dual-pronged retention device 440 in place, as shown inFIG. 14 . - In another embodiment, shown in
FIG. 15 , a dual-pronged retention device 540 for amulti-directional roller assembly 500 includes a base 541 seated in a seat in aframe 510 of the multi-directional roller assembly andaxles 543, 544 extending from thebase 541 for mountingrollers FIG. 16 , aprotrusion 511 in theframe 510 can engage the base to lock the retention device in place. -
FIG. 17 shows another embodiment of amulti-directional roller assembly 600 including self-retaining dual-pronged retention devices holding pairs of mutually-actuatingrollers 602 relative to aframe 610. Afirst retention device 640, shown inFIG. 18 , comprises a base 641 from whichparallel axles tabs 646 extend from thebase 641. Theframe 610 of themulti-directional roller assembly 600 includes a feature in theframe 610 for engaging theflexible retention tab 646 to hold theretention device 640 in place. In another embodiment, shown inFIG. 19 , a dual-pronged retention device 640′ may include anopening 670 in the base 641′. - The invention is not limited to a retention device with two prongs, and the device may alternatively include three or more prongs extending from an integral base to secure components of a conveyor.
- Although the invention has been described in detail with respect to an exemplary version, other versions are possible. So, as these few examples suggest, the scope of the claims is not meant to be limited to the exemplary embodiments described in detail.
Claims (17)
Priority Applications (1)
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US15/892,823 US10442626B2 (en) | 2017-02-13 | 2018-02-09 | Snap-in dual-pronged retaining device for a conveyor component |
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US201762458130P | 2017-02-13 | 2017-02-13 | |
US15/892,823 US10442626B2 (en) | 2017-02-13 | 2018-02-09 | Snap-in dual-pronged retaining device for a conveyor component |
Publications (2)
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US20180229938A1 true US20180229938A1 (en) | 2018-08-16 |
US10442626B2 US10442626B2 (en) | 2019-10-15 |
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US15/892,823 Active US10442626B2 (en) | 2017-02-13 | 2018-02-09 | Snap-in dual-pronged retaining device for a conveyor component |
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US (1) | US10442626B2 (en) |
EP (1) | EP3580152A4 (en) |
JP (1) | JP7132930B2 (en) |
CN (1) | CN110267889B (en) |
BR (1) | BR112019016403B1 (en) |
MX (1) | MX2019009491A (en) |
WO (1) | WO2018148513A1 (en) |
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CN114096473A (en) * | 2019-08-07 | 2022-02-25 | 莱特拉姆有限责任公司 | Roller belt with support edge |
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BR112020015326A2 (en) | 2018-01-30 | 2020-12-08 | Cambridge International, Inc. | SEAM SYSTEM FOR CONVEYOR BELT |
CN110697323A (en) * | 2019-09-27 | 2020-01-17 | 深圳市华南新海传动机械有限公司 | Staggered combined module conveying belt |
EP4087798A4 (en) * | 2020-01-06 | 2024-05-15 | Laitram Llc | Modular conveyor belt with dedicated access assembly |
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Also Published As
Publication number | Publication date |
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EP3580152A4 (en) | 2020-12-23 |
JP2020507536A (en) | 2020-03-12 |
CN110267889A (en) | 2019-09-20 |
CN110267889B (en) | 2021-04-27 |
EP3580152A1 (en) | 2019-12-18 |
US10442626B2 (en) | 2019-10-15 |
WO2018148513A1 (en) | 2018-08-16 |
JP7132930B2 (en) | 2022-09-07 |
MX2019009491A (en) | 2019-09-27 |
BR112019016403A2 (en) | 2020-04-07 |
BR112019016403B1 (en) | 2023-12-05 |
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